Category Archives :Maritime knowledge

What do you do when you are trapped fishing on the island? What happens when your ship suddenly runs out of oil? At this time, if you don't bring any communication equipment, you can only listen to fate. If you bring it, Congratulations, you can get help. Of course, if you use a mobile phone at this time, pray that it has a signal, otherwise it can only be a toy. If you have a marine VHF radio in your hand, you can be happy.  ...

There will be different degrees of loss during the use of marine VHF radio. Some small problems will not cause the use of marine VHF radio, but some large losses will damage the use of VHF radio. Let's learn some aspects that are easy to cause damage to marine VHF radio.  ...

Marine VHF radio is one of the necessary communication equipment for ships. Because its cost performance and effect are much better than mobile phones, Marine VHF radio has become the most widely used communication equipment in ship communication. There are many brands of VHF marine radio. How should we choose and buy them?  ...

Retevis RM40 marine radio has been in hand for some time. Compared with the previous RT55 and RA26, the first is that the appearance has changed, the panel is richer, and many functions are triggered directly by buttons. There is no need to search the menu, which looks more professional. The battery adopts polymer lithium battery, and the battery capacity also reaches 1500mAh.  ...

The obvious difference between marine VHF radio and other analog radio is that all channel frequency points are non adjustable and are fixed frequency points, and some of these frequency points are the same frequency points and some are different frequency points. This leads to many friends in the use of marine VHF radio can not effectively direct. The following is a brief introduction to the channel of marine VHF radio, hoping to help some friends.  ...

As a high-end handheld marine VHF radio, RM40 has its own DSC function, so it is inevitable to have distress call. For maritime practitioners, the importance of this function is self-evident. This function is briefly introduced below.  ...

Retevis RM40 is one of the few hand-held marine VHF radio with storage and navigation functions, which makes RM40 more functional and practical in the process of navigation, and it is convenient for users to store the geographical location at any time in the process of navigation. Here is a brief introduction to how to set this function.  ...

Retevis RM40 is a professional marine VHF radio. Unlike previous marine VHF radios, it has DSC function. Many handheld marine VHF radios on the market do not include this function, but only on the shipboard platform. Nowadays, the application of DSC function in RM40 to handheld marine VHF radio is a great progress, which helps the crew to alarm and rescue in case of critical environment. Let's briefly introduce the relevant steps of RM40 DSC setting  ...

This paper introduces some basic functions of retevis RM40 maritime radio, which solves some use problems for some users who are not familiar with VHF marine radio. However, RM40 also has some special functions, which are also concerned. It is because of these special functions that it shows its uniqueness. Here is a brief introduction to these features.  ...

When building a radio communication system on board, multiple antennas, such as satellite receiving antenna, GPS positioning antenna and VHF marine radio antenna are needed. Most of these antennas are all omnidirectional FRP antennas. Why to use them and what characteristics they have, I will talk to you today about this omnidirectional FRP antenna.  ...